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Effect of genistein on steroidogenic response of granulosa cell populations from porcine preovulatory follicles

100%

Nynca A. , Ciereszko R. E.

Reproductive Biology

2006

tom 06

nr 1

Fitoestrogeny. 1. Wystepowanie, metabolizm i znaczenie biologiczne u samic

80%

Kraszewska O. , Nynca A. , Kaminska B. , Ciereszko R.

Postępy Biologii Komórki

2007

tom 34

nr 1

189-205

Fitoestrogeny. 2. Wewnatrzkomorkowy mechanizm dzialania w ukladzie rozrodczym samicy

80%

Nynca A. , Kraszewska O. , Slomczynska M. , Ciereszko R.

Postępy Biologii Komórki

2007

tom 34

nr 1

207-222

Genistein and daidzein affect in vitro steroidogenesis but not gene expression of steroidogenic enzymes in adrenals of pigs

70%

Kaminska B. , Czerwinska J. , Wojciechowicz B. , Nynca A. , Ciereszko R.

Journal of Physiology and Pharmacology

2014

tom 65

nr 1

Effects of phytoestrogen daidzein and estradiol on steroidogenesis and expression of estrogen receptors in porcine luteinized granulosa cells from large follicles

70%

Nynca A. , Jablonska O. , Slomczynska M. , Petroff B. K. , Ciereszko R. E.

tom 60

nr 2

95-105

The aims of the study were to compare the in vitro effects of daidzein or 17ß-estradiol (E2) on: 1) progesterone (P4) secretion by luteinized granulosa cells harvested from large porcine follicles, as well as 2) estrogen receptor and ß (ER and ERß) mRNA and protein expression in the cells. In addition, the effect of daidzein on E2 secretion and viability of the granulosa cells was examined. We found that basal and gonadotropin-stimulated P4 secretion were inhibited in granulosa cells cultured in the presence of daidzein either for 24 or 48 hours. In contrast to daidzein, E2 reduced P4 secretion only during 24-hour cell cultures increasing it during longer cultures. Daidzein did not affect E2 secretion by granulosa cells. The expression of ER and ERß mRNA, as well as ERß protein, was up-regulated by daidzein but unaffected by E2. To conclude, the soy estrogen daidzein acts directly on the porcine ovary to decrease progesterone production and to increase expression of ERß mRNA and protein. Daidzein actions in porcine luteinized granulosa cells differ from those of estradiol and it may suggest disadvantageous effects of the phytoestrogen on reproductive processes in females.

The effects of phytoestrogen genistein on steroidogenesis and estrogen receptor expression in porcine granulosa cells of large follicles

70%

Nynca A. , Sadowska A. , Orlowska K. , Jablonska M. , Ciereszko R. E.

Folia Biologica

2015

tom 63

nr 2

Mechanism of phytoestrogen action in reproductive processes of mammals and birds

41%

Dusza L. , Ciereszko R. , Skarzynski D. J. , Nogowski L. , Opalka M. , Kaminska B. , Nynca A. , Kraszewska O. , Slomczynska M. , Woclawek-Potocka I. , Korzekwa A. , Pruszynska-Oszmalek E. , Szkudelska K.

Reproductive Biology

2006

tom 06

nr Suppl.1